62 free tools in this category. Page 2 of 6.
Set a countdown timer with hours, minutes, and seconds. Features preset timers, Pomodoro mode, custom labels, progress bar, full-screen display, and audio alert.
Calculate the exact number of days, weeks, months, and business days between two dates. Add or subtract days from any date to find the resulting calendar date.
Calculate sale prices, discount amounts, and total savings instantly. Stack multiple sequential discounts to see the true final price with a quick reference table.
Extract email addresses from any text, HTML, or document instantly. Deduplicate, sort, filter by domain, and copy or download your clean list. 100% free.
Calculate fractions with step-by-step solutions. Add, subtract, multiply, and divide fractions and mixed numbers. Auto-simplifies results and converts to decimals.
Calculate your college GPA on a 4.0 scale. Add courses with grades and credit hours to get your cumulative GPA, quality points, and academic classification.
Resize images online for free. Choose social media presets for Instagram, Facebook, Twitter, YouTube, or set custom dimensions. No upload or signup required.
Sort lists alphabetically in seconds. Remove duplicates, add numbering (1,2,3 or a,b,c), sort by last word. Free alphabetizer with side-by-side preview.
Generate placeholder text for your designs. Choose from Classic Latin, Bacon Ipsum, Hipster Ipsum, or Corporate Ipsum. Output as HTML, lists, or plain text.
Accurate online stopwatch with lap timing, split times, best/worst lap highlighting, and one-click copy. Track elapsed time down to the hundredth of a second.
Calculate percentages instantly with four modes: find X% of Y, what percent X is of Y, percentage increase or decrease, and percentage difference between two values.
Evaluate math expressions with trig, logarithms, exponents, and constants. Free scientific calculator with degree/radian modes and calculation history.
Showing 13-24 of 62 tools